Toshiba 6F3B0253 user manual Logical operations, Shift operations

6F3B0253

7. Instructions

Logical operations

FUN	Name	Expression		Function	Steps	Speed	Page
No.						(∝ s)
048	AND	− [ A AND B →	C ]−	Finds logical AND of A and B,	4	5.7	156
				and stores it in C.
050	OR	− [ A OR B →	C ]−	Finds logical OR of A and B,	4	5.7	157
				and stores it in C.
052	Exclusive OR	− [ A EOR B →	C ]−	Finds logical exclusive OR of A	4	5.7	158
				and B, and stores it in C.
064	Bit test	− [ A TEST B ]−		Turns ON output if logical AND	3	5.0	163
				of A and B is not 0.

Shift operations

FUN	Name			Expression			Function	Steps	Speed	Page
No.									(∝ s)
068	1 bit shift right	−	[ SHR1 A ]−				Shifts data of A 1 bit to the right	2	6.8	164
							(LSB direction). The carry flag
							changes according to the result.
069	1 bit shift left	−	[ SHL1 A ]−				Shifts data of A 1 bit to the left	2	6.8	165
							(MSB direction). The carry flag
							changes according to the result.
070	n bit shift right	−	[ A SHR n →			B ]−	Shifts data of A n bits to the
							right (LSB direction) and stores	4	10.2	166
							the result in B. The carry flag
							changes according to the result.
071	n bit shift left	−	[ A SHL n →			B ]−	Shifts data of A n bits to the left
							(MSB direction) and stores the	4	10.2	167
							result in B. The carry flag
							changes according to the result.
074	Shift register	D		SR	Q		When shift input (S) comes ON,
		S		(n)			shifts the data of specified shift
		E		A			register 1 bit to the left, and
							stores data input (D) state into
							A. This operation is enabled	3	65.9 -	168
							while enable input (E) is ON.		76.2
							The carry flag changes
							according to the result.
							Shift register: n devices starting
							with device A.
075	Bi-directional	D		DSR	Q		When shift input (S) comes ON,
	shift register	S		(n)			shifts the data of specified shift
		E		A			register 1 bit to the left or to the
		L					right depending on direction
							input (L). This operation is
							enabled while enable input (E) is	3	69.0 -	170
							ON. The carry flag changes		79.3
							according to the result.
							Shift register: n devices starting
							with device A.
							Direction: Left when L is ON,
							right when L is OFF

Basic Hardware and Function 109